-
Notifications
You must be signed in to change notification settings - Fork 263
/
response.go
98 lines (85 loc) · 2.12 KB
/
response.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
/*
* Copyright 2020 The Dragonfly Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package source
import (
"fmt"
"io"
"net/http"
)
type Response struct {
Status string
StatusCode int
Header Header
Body io.ReadCloser
ContentLength int64
}
func NewResponse(rc io.ReadCloser, opts ...func(*Response)) *Response {
if rc == nil {
// for custom plugin, return an error body
rc = &errorBody{
fmt.Errorf("empty io.ReadCloser, please check resource plugin implement")}
}
resp := &Response{
Header: make(Header),
Status: "OK",
StatusCode: http.StatusOK,
Body: rc,
ContentLength: -1,
}
for _, opt := range opts {
opt(resp)
}
return resp
}
func WithStatus(code int, status string) func(*Response) {
return func(resp *Response) {
resp.StatusCode = code
resp.Status = status
}
}
func WithContentLength(length int64) func(*Response) {
return func(resp *Response) {
resp.ContentLength = length
}
}
func WithHeader(header map[string]string) func(*Response) {
return func(resp *Response) {
for k, v := range header {
resp.Header.Set(k, v)
}
}
}
func WithExpireInfo(info ExpireInfo) func(*Response) {
return func(resp *Response) {
resp.Header.Set(LastModified, info.LastModified)
resp.Header.Set(ETag, info.ETag)
}
}
func (resp *Response) ExpireInfo() ExpireInfo {
return ExpireInfo{
LastModified: resp.Header.Get(LastModified),
ETag: resp.Header.Get(ETag),
}
}
type errorBody struct {
error
}
func (e *errorBody) Read(p []byte) (n int, err error) {
return 0, e.error
}
func (e *errorBody) Close() error {
return nil
}